package ooday01;

public class StudentTest {
    public static void main(String[] args) {
        Student zs = new Student();
        Student li = new Student("lisi",25);
        Student ww = new Student("wangwu" ,26, "jsd2302", "2000");
        zs.sayHi();
        li.sayHi();
        ww.sayHi();

    }
}
